Evaluation of improvement in jumping ability of young horses

The objective of this study was to gain objective data for breeding of warm blood horses by the method of a computer-based analyses of a process of the young horsesjumping. 427 jumps were analyzed and 11 quality performance indexes were evaluated (rounded back, limbs angling in particular joints and a lift of the forelimbs above the hurdle). Basic statistic characteristics of observed data and statistic importance of the factors included in a linear model were established. The results showed that it is not a creation of rounded back, which is the most important for a selection of warm blood horses for their jumping abilities (V=4.23 to 6.59%) but a level of a flexion of the limbs in particular joints (V = 7.24 to 36.55%) and, in the first place, a lift of the forelimbs above the hurdle (V = 37.90%). A highly significant influence of horse's individuality (F = 3.73+++ to 28.40+++) and of a stage of the training (F = 2.16+ to 32.81 +++) on particular data was discovered, the influence of sex being insignificant and an influence of the height of the jump was statistically important only at the place of a maximal flexion of the forelimbs above a hurdle (F=4.41+++). A factor of determination (R 2 ) for the particular data was found on level 11.22 to 54.08.